On Thu Feb 5, 2026 at 7:56 PM CET, Mel Henning wrote:
> +int
> +nouveau_abi16_ioctl_get_zcull_info(ABI16_IOCTL_ARGS)
> +{
> + struct nouveau_drm *drm = nouveau_drm(dev);
> + struct nvkm_gr *gr = nvxx_gr(drm);
> + struct drm_nouveau_get_zcull_info *out = data;
> +
> + if (gr->has_zcull_info) {
> + const struct nvkm_gr_zcull_info *i = &gr->zcull_info;
> +
> + out->width_align_pixels = i->width_align_pixels;
> + out->height_align_pixels = i->height_align_pixels;
> + out->pixel_squares_by_aliquots = i->pixel_squares_by_aliquots;
> + out->aliquot_total = i->aliquot_total;
> + out->zcull_region_byte_multiplier =
> i->zcull_region_byte_multiplier;
> + out->zcull_region_header_size = i->zcull_region_header_size;
> + out->zcull_subregion_header_size =
> i->zcull_subregion_header_size;
> + out->subregion_count = i->subregion_count;
> + out->subregion_width_align_pixels =
> i->subregion_width_align_pixels;
> + out->subregion_height_align_pixels =
> i->subregion_height_align_pixels;
> + out->ctxsw_size = i->ctxsw_size;
> + out->ctxsw_align = i->ctxsw_align;
> +
> + return 0;
> + } else {
> + return -ENODEV;
ENODEV usually means that that device fell off the bus, I think ENOTTY would be
a better fit.
> + }
> +}
